Develop 95% confidence intervals for the mean age and household income of subscribers.What is the approximate total value of financial investments, exclusive of your home, owned by you or members of your household?
Young Professional Magazine was developed for a target audience of recent college graduates who are in their first 10 years in a business/professional career. In its two years of publication, the magazine has been fairly successful. Now the publisher is interested in expanding the magazine’s advertising base. Potential advertisers continually ask about the demographics and […]